<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .icon {
            display: inline-block;
            width: 0;
            font-size: 0;
            position: relative;
            margin-right: 20px;
        }

        .star {
            border-left: 50px solid transparent;
            border-right: 50px solid transparent;
            border-bottom: 100px solid red;
        }

        .star::after {
            border-left: 50px solid transparent;
            border-right: 50px solid transparent;
            border-top: 100px solid red;
            position: absolute;
            content: "";
            top: 30px;
            left: -50px;
        }

        .arrow {
            width: 40px;
            height: 40px;
            margin: 0 40px;
            background-color: red;
        }

        .arrow::before {
            position: absolute;
            left: -40px;
            border: solid 20px red;
            border-left-color: transparent;
            content: "";
        }

        .arrow::after {
            position: absolute;
            right: -40px;
            border: solid 20px transparent;
            border-left-color: red;
            content: "";
        }

        .pacman {
            width: 0px;
            height: 0px;
            border-right: 40px solid transparent;
            border-top: 40px solid red;
            border-left: 40px solid red;
            border-bottom: 40px solid red;
            border-top-left-radius: 40px;
            border-top-right-radius: 40px;
            border-bottom-left-radius: 40px;
            border-bottom-right-radius: 40px;
        }
    </style>
</head>

<body>
    <div class="icon star"></div>
    <div class="icon arrow"></div>
    <div class="icon pacman"></div>
</body>

</html>